I'm curious as to how the Eagles would look with a gray background, the Seahawks with a neon green background, and the Chargers with a powder blue background.
These are great, it's an idea I've been kicking around in my head for a while now, thanks for sharing this!

Couple of critiques:
The logos are pretty decent, the only thing I would change is the color of the circle from white to red on the logo on the left (and get rid of the thin black outlines that go with it). It would be a good nod to the Selanne/Tkachuk/Essensa era Jets teams of the first half of the 1990s.
The jerseys make absolutely no sense whatsoever. There is no cohesion with colors or striping in relation to the rest of the set. Are you presenting this as a black team or a red team? I'd get rid of the BFBS jersey and stick to the red/white/blue/gray color palette of the one on the right.

Love the kit, but I feel the need to make a minor correction. Duluth Trading Company was started in Duluth, but is now based out of Mount Horeb, Wisconsin (corporate office) and Belleville, Wisconsin (factory). My wife does a lot of freelance work for them as a graphic designer, so I am very well familiar with the company.
Aside from that, great series so far! Everything has been well done and presentation looks great!

Your secondary logo almost reads like an N with an O inside, but I think it gets muddied with the addition of the third crescent (the yellow one). Have you ever though of just making it a filled-in circle to further accentuate the purple and green crescents? Just a thought.
And tricolored winged helmet all the way!

One note about Milwaukee: The Packers are lumped in with the Milwaukee TV market as secondary to the Green Bay-Appleton market. This was done because the Packers played three regular season games a year in Milwaukee until after the 1994 season, when these games were moved to Green Bay as part of the Gold package (for the displaced Milwaukee season ticket-holders). When TV blackout rules were still in effect, they were retained for Milwaukee TV stations because of the Gold package. That and the Packers flagship radio station broadcasts out of Milwaukee instead of Green Bay.
At least that's my understanding of it. Either way, I just saved you a concept

Growing up in southern California, Tim Timmons (born 1950) was a childhood friend of Imperials WR Benny "The Jet" Rodriguez. Both shared dreams of glory in their respective sports, Rodriguez on the gridiron and Timmons on the soccer pitch. As a prolific midfielder, Timmons was widely recruited by many of the soccer programs on the Pacific coast. However, a knee injury during his senior year of high school put those dreams in jeopardy. Still, while attending the architecture school at the University of California at Irvine, he made the school's soccer team as a walk-on his sophomore year and eventually made the all-PCAA conference team his senior year. After a few unsuccessful trials with professional clubs in the United States and Canada, Timmons went to work for a prestigious architectural firm in Los Angeles. Finding the corporate life to be unsatisfying, Timmons started his own practice and his brother, Tom, joined him as a contractor. They got their start with small residential projects, but the two had much bigger ideas in mind. Seeing the successes that indoor shopping centers were experiencing throughout the United States, the Timmons brothers started purchasing properties of their own. However, these were smaller properties orientated to major thoroughfares, and these shopping centers (designed by Tim and built by Tom) primarily featured local businesses along with national restaurant chains. Collecting the rents from these properties made the brothers multi-millionaires, and Tim resumed his dreams of soccer glory (albeit via a different avenue) by purchasing a minority stake in the NASL's California Surf.
1980 Expansion Council Votes
1) Kansas City -- This one would take smaller amounts of broadcast areas from multiple teams (St. Louis, Minnesota, and Colorado) as opposed to taking a large chunk out of one team's territory.
2) Tampa Bay -- Economic issues aside, there is a suitable stadium already in an area that is projected to grow rapidly in the 1980s and beyond.
3) Hartford/New Haven -- There should be room for at least one "boutique" market in the AFA, but the two cities are part of Boston Captains territory, and are expecting pushback from Captains ownership

I see you're blending at least two eras of the Polo Grounds for this one, your designs have been very similar to how British football stadia were developed over their lifespans. It works to great effect here, the two eras actually meld together pretty well.

As an architect who uses SketchUp on a fairly regular basis, I must say that what you've been able to do with the program is very impressive. I'm excited to see what your creativity and talents have in store for us next!

I've followed your work on the Baseball Fever forum, and your stadium designs are nothing short of amazing. This is no exception. The logos also look very period-appropriate, great start to the series!

Just doing some quick thumbnail research on the Gridiron Uniform Database, there was one other holdout for V-neck collars as late as 1997, and that was the Pittsburgh Steelers (I didn't believe it at first myself, but confirmed through image searches for the 1996 Steelers). Fitting since I think Pittsburgh would be one of the teams that could possibly hold out, given their cold weather location and history.
It seems the sweet spot for the switch over to V-necks in the NFL was the 1982 season, with twelve teams making the switch (Bengals, Broncos, Buccaneers, Cardinals, Chargers, Chiefs, Colts, Cowboys, Lions, Oilers, Packers, Seahawks, and Vikings), but the time range is between 1971 (Los Angeles Rams) and 1997 (Pittsburgh Steelers), so you're right in the range.

Congrats on the coming addition to your family!
Quick question about the new template: is everybody going to have a V-neck collar or are there going to be a few crewneck holdouts? The best real life example I can think of is the Chicago Bears, who didn't go to a V-neck until the early 1990s.

Love the look of the new Whales, but I do have one quick critique: the away uniforms look very similar to those of the Philadelphia Railers. Seeing as the Railers color palette is a bit larger than the Whales, is there any chance that some red would be added to that uniform in the near future to avoid confusion?